Two more students were taken into custody Tuesday after making statements about having a bomb, according to Willis High School's principal. The incident comes one day after a second gun was found on campus, prompting mandatory metal detector screenings, backpack searches and increased law enforcement presence.

After four gun-related incidents in less than a month, Willis High School is implementing new security measures, including metal detectors, bag searches and a clear backpack policy. Some parents say the changes are long overdue.